Cooling-water distribution



Oct. 2, 1928. 1,686,039

C. R. SHORT COOLING WATER DI STRIBUTION Filed March 1, 1926 I Chqrlesiafihozi /Z. may Ww atto'zua Patented Oct. 2, 19 28.

I eams stares 31 insane at nt Ql FEFEQE.

CHARLES 3. SHORT, on DETROIT, MICHIGAI-I-, -ASS1GNOR TO crannies-n Morons Rn, SEARCH GOBPORATION, on nnrrnornnrcnrean, A oonronarron-or DELAWARE.

COOLING-WATER nIsTRIB'o'TIon;

Application filed March 1, 1926. serial No. 91,507.

This invention relates to av cooling system intended primarily for internal combustion engines, although its usefulness is not limited thereto, other applications being obvious'to those skilled in the art. 7

It is a fact generally known that a cooling systemfor explosive motors which is efficient when the motor is hot'operates disa'dvanta geously when the motor is cold by preventing it from attaining the temperature necessary for its most efiicient operation."

It is an object of this invention to modify the conventional cooling system in sucha Way as to overcome this difficulty and to permit the motor to attain the aforesaid working temperature as quickly as possible. modification of the conventional system aims also to accomplish this object by providing an efiicient cooling agency when the motor is A further object attained is a reduction in the formation of water by condensation on-the cold cylinder walls. p The above and other objects are accom plished by an arrangement wherebythe cool- .ing fluid impelled by. a pump iseither forced through the water jacket space around the cylinders and then to the cylinder head "or impelled directly to the head. This is accom- .plished by a valve which directs'the current in the channel desired. This valve may be manually operated or controlled by a thermostat or by other means. I i

For a full; understanding of the invention, reference is made to the following description and drawing.

' the cylinder block is showna head 5. The

particular motor used for illustrationjis one with over-head valves, therefore there is shown a rocker arm cover 7 Vithin the cylinder block 1 there may be a plurality of cylinders, as shown at 9 in F igure 3. ithin the block and in the space around cylinders, there is provided a water jacket 11. WVithin the head there is a water The chamber 13 which communicates with the Water jacket 11 by means of openings, suchas 12, shown in Figure 3. From the chamber 13 extends a pipe 15. This pipe 15 is connected pump may of any type and is operated in any convenient way, a shaft 21 being'shown in the illustrated example in Figure 1; From the pump 19 a connection ismade'to the motor block by means of a hose coupling22 and a fitting 23. This fitting 23 is secured to the cylinder block by means of flanges 25-held bolts27. U V

Communicating with the water jacket space of the cylinder block is a downwardly directed conduit 29. This conduit is shown as inserted into an opening in the top of the cylinder block. The conduit is threaded into the top of the block, its upper end having a threaded portion engaged by securmg'mean's,

8, and an opening 28 communicating with space 13 In the head by means of a passage 6 in said head. 'Achacentthe connection of the fitting 23 with'the cylinder block a 'second conduit 31 is providedr This conduit 31 has,

flanges 33 which engage the cylinder'block beneath theflanges 25 and are secured by" means of thesamebolts27. This conduit 31 extends into the cylin der blo'ck and is provided with a -horizontal partition 35. I The passage beneath. this partition communicates 'Wlth the water acket'space 11 as shown in Figure 2. The conduit space above the par tltion 35 is connected wlth the verticalconduit 29. By "the arrangement as described, it will be seen that water'flowing from the pump may flow beneath the partition through the cylinder Water jacket 11' into the head chamber 13 byway of openings12 and out through the pipe 15 to the radiator {or it'may' and 6 and through the head chamber 13 without passing through the cylinder water jacket.

' In order to control the coolin fluid takes as it enters the conduit 31, there is provided in the fitting 23 a valve 37.

course which the V m flow through the upper portion of the conduit through the vertical conduit 29, openings 23 This valve is carried on a shaft 39 and controlled by an arm 41. It will be seen that by properly operating the arm 41 by link l3 f or in any convenient way, the valve may open one passage and close the other or it may partly open each passage. 7 By means of the structure described above,

it will be seen that the pump is in constant operation to impel. a flow of cooling fluid through the cooling system that the valve may be turned to the full line position of Figure '2 when the motor is cold; that when in this position the cooling fluid passes from the pump through theconduit 29 directly to the cylinder head, leavingundisturbed that portion of the fluid in the cylinder jacket.

' The motor under these circumstances heats inders and ahead, a cooling system therefor up quickly and the fluid 'is' being circulated only .by the thermo-syphon system. After the motor is well warmed up the valve is turned to introduce the fluid into the cylinder jacket. It will be obvious thatundc'i' such circumstances the current flows in the usual way from the pump around cylinder Walls and out through the pipe 15. Further-'- more, it will be readily seen that the valve maybe positionedat any position between the fully line and the dotted line positions of .Figure 250 that the distribution of thc fluid may be determined as desired.

I clai'mzv i 1. In a motor comprising one or morecylincluding a pump, a water jacket about the cylinders, means within the cylinder block whereby the flow of fluid maybedirected through the Water jacket to the head or may be impelled directly to the head, by-passing the water jacket.

2. A'motor cylinder, a-water jacket therearound,a head thereabove, means to circulate cooling fluid tothe water jacket, a by a pass within the water jacket whereby the fluid may continue to' circulate to' the head without passing through the water jacket. r

3. A motor having one or more cylinders surrounded by a water jacket, and a head over the cylinders, containing a chamber forcooling fluid, means to produce a current of cooling fluid around the cylinder walls, and means including a conduit within the water jacket toby-pass said fluid directly to said head.

4:, A motor having a cylinder block con taining one or more cylinders and spaces for cooling fluid, a head also provided with a space for cooling fluid, conduits secured within the block and arranged to ailiord communication for the cooling fluid either directly to the spaces in the cylinder head or to said spaces by way of the cooling fluid spaces in the cylinder block, and a valve for controlling I the directionof the current.

5. A. cooling system for motors having a" water jacketed cylinder, and a'water chainbered head having communication therewith, means to force coolingfluid through the system, means Within the water acket space of the motor aflor'ding communication between said fluid forcing means and the'chambered head directly, and also affording communication between said fluid forcing means'and the head chamber by way of the cylinder water jacket, means to control the direction of the fluid current. i i

6. In a motor having a cylinder witha water acket and a head from which cooling I fluid is to flow to a radiator, a pump for circu V 

